July 2 (Reuters) - Bass Oil BAS.AX :
* NEGOTIATED AN EXTENSION ON AGREEMENT WITH COOPER ENERGY LTD ON ACQUISITION OF ITS 55% INTEREST IN TANGAI-SUKANANTI KSO IN SOUTH SUMATRA
* EXTENSION TO ALLOW BASS TO START NEXT PHASE OF DEVELOPMENT OF BUNIAN AND TANGAI FIELDS WITHOUT NEED TO RAISE ADDITIONAL CAPITAL